Serving tray



FIG. 1 is a front perspective view of a serving tray;

FIG. 2 is a front elevation view of the serving tray of FIG. 1;

FIG. 3 is a rear elevation view of the serving tray of FIG. 1;

FIG. 4 is a right side view of the serving tray of FIG. 1;

FIG. 5 is a left side view of the serving tray of FIG. 1;

FIG. 6 is a top view of the serving tray of FIG. 1; and,

FIG. 7 is a bottom view of the serving tray of FIG. 1.

The broken lines represent structure or features that form no part of the claimed design. 

CLAIM The ornamental design for a serving tray, as shown and described. 